so really there is very little configuration required on your part to get up and running. It also pre-configures all the controls, aspect ratio settings, etc. So what is EmuDeck? EmuDeck is a tool (more precisely, a script) that you can download/install which greatly simplifies the installation of 160 emulators and supporting utilities to your Steam Deck. If you want to be able to run retro games from various systems on your Steam Deck, EmuDeck will make the process much easier!
Video: Steam Deck EmuDeck v2.1 Setup Guide